class CreateDescriptorsMaterials < ActiveRecord::Migration
  def self.up
    create_table :descriptors_materials, :id => false do |t|
      t.integer :material_id, :null => false
      t.integer :descriptor_id, :null => false
      t.timestamps
    end
  end

  def self.down
	drop_table :descriptors_materials
  end
end
